Mutual Screw & Supply

M8-1.25 X 20mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (400 / Pkg.)

M8-1.25 X 20mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded - Main image
$36.5 $48.66 In stock

These M8-1.25 x 20mm socket cap screws are manufactured from Alloy Steel Thermal Black Oxide, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Thermal Black Oxide
  • Head style: Flat Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M8-1.25
  • Length: 20mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Flat Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 10.9
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M8-1.25
  • Length: 20mm
  • Measurement type: Metric
  • Pack quantity: 400 per package
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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Ellie ★★★★★

The hex socket drive gripped firmly without stripping, and the black oxide finish on these M8 bolts feels durable. I used them for a jig fixture build and every single screw threaded perfectly. They’re exactly what I needed for precision work.

Ellie ★★★★★

These screws cut clean threads into steel with zero wobble from the hex socket drive — perfect for jig fixtures. The black oxide coating seems durable and hasn't chipped during assembly.

Nicholas ★★★★★

I needed a batch for a custom workbench jig and these flat heads sit flush perfectly in counterbored holes. The hex drive grips securely without stripping, and the black oxide coating feels robust for heavy shop use.